www.nature.com
4 months agoOMG science
Ancient DNA Reveals Origins of Multiple Sclerosis in Europe
Migrants who arrived in Europe in three waves starting 45,000 years ago brought with them genetic traits found in modern Europeans, including a heightened risk for multiple sclerosis.
The regional variation in certain traits found in modern Europeans was caused by differences in migrants' dispersal patterns, contradicting the idea that genetic differences arose mainly as people adapted to specific locations in Europe. [ more ]